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 A219417 Unchanging value maps: number of n X n binary arrays indicating the locations of corresponding elements unequal to no horizontal or antidiagonal neighbor in a random 0..2 n X n array 0
 1, 7, 93, 3617, 372560, 104434119, 80311501599, 170240798669115, 992546861505827096, 15854777538297903063593 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Diagonal of A219421 LINKS Table of n, a(n) for n=1..10. EXAMPLE Some solutions for n=3 ..1..1..0....0..0..0....1..1..0....0..0..1....0..0..0....0..0..1....0..0..0 ..0..0..0....0..1..0....0..0..0....1..1..1....1..0..1....0..0..1....1..0..1 ..1..0..1....0..0..1....0..1..1....1..0..0....1..1..1....1..0..0....0..0..0 CROSSREFS Sequence in context: A346464 A197484 A218835 * A220405 A109304 A134113 Adjacent sequences: A219414 A219415 A219416 * A219418 A219419 A219420 KEYWORD nonn AUTHOR R. H. Hardin Nov 19 2012 STATUS approved

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Last modified September 27 08:15 EDT 2023. Contains 365674 sequences. (Running on oeis4.)